224 DISCOVERY REPORTS 



scattered between these two series in the equivalent of two irregular longiseries. All 

 carry heavy basal wreaths of crossed pedicellariae which increase in size from the carinal 

 (0-27-0-36 mm.) to the superomarginal (o-40-o-45 mm.). The lateral, vertical face of ray 

 is about half as wide as the dorsolateral. The first 5-8 inferomarginals carry i spatulate, 

 heavy spine, then two until near end of ray where there may be either i or 2. Each spine, 

 or pair of spines, carries a pad of crossed pedicellariae on the upper and outer side. (For 

 form and dimensions of spines see Fig. L, la-ie). Between the inferomarginals and 

 adambulacrals is a short series of slender, spineless actinal plates hidden by the integument. 



The adambulacrals are regularly diplacanthid except the first i, 2, or 3. The spines are 

 subterete, round-tipped, relative to the inferomarginals, rather slender. Each narrow 

 mouth-plate has i long and i short actinostomial spine, and i still longer suboral like the 

 first few adambulacrals. The first pair of adambulacrals are in close contact behind the 

 mouth-plates, the second and third pairs not so close ; the fourth pair definitely separated. 



The abactinal skeleton is not very regular. The carinal plates imbricate directly one 

 with the other but form a sinuous series. The spiniferous dorsolaterals do not form well- 

 defined longiseries and it seems probable that in an older specimen the skeleton will lose 

 rather than gain in regularity, as in the case of L. nafmne/isis. The surface of the supero- 

 marginal plates lacks any trace of hyaline pebbling such as is found in Sclerasterias. 



Good sized papulae occur singly or in two's on the dorsolateral area and disk ; singly 

 along the intermarginal channel ; and a short series proximally in the actinal channel. 

 Integument thick and wrinkled. 



In addition to the characteristic crossed pedicellariae, which occur on abactinal and 

 marginal spines, there is a moderate number of lanceolate, pedunculate straight 

 pedicellariae on the mouth and adambulacral plates (furrow face), and i or 2 on each 

 actinal interradial area (0-75 mm. long). 



Madreporite small, sunken, situated at mid-r. 



Gonads rudimentary. 



Type locality. St. WS 235, 47" 56' S, 61" 10' W, 155 m., i specimen. 



Remarks. The type is immature and the species possibly attains a large size, as in the 

 case of L. nanimensis and L. nanimensis chelifera} It is not improbable that such large 

 specimens will be provided with unguiculate straight pedicellariae. The crossed 

 pedicellariae of aiistralis have a more extensive terminal lip than is found in the northern 

 forms. This is most easily appreciated by a comparison of drawings of lateral views 

 (Fisher, 1928, pi. 60, figs. 4, 5). 



Genus Notasterias Koehler . 



Notasterias Koehler, 191 1, p. 35. Type A^. armata Koehler. — Fisher, 1930, p. 243. 

 Autasterias Koehler, 191 1, p. 38. Type Asterias pedicellaris Koehler. — Fisher, 1930, p. 244. 

 Notasteriinae Fisher, 1930, p. 243. 



Diagnosis. With crossed pedicellariae of a peculiar type, sometimes of very large 

 size, having hooked terminally crossed, somewhat falcate jaws, the bases of which flare 



1 Fisher, 1928, pp. 132, 134. 



